We haven’t heard much out of the Firestorm development team since early April and that was about avoiding phishing attacks. But, I am seeing some leaks of the coming 4.1.1 (?). About 7 weeks ago Firestorm 4.0.1 (27000) was released, March 20, 2012.
The release notes are being marked up. And they reveal what MAY be in the next release. Also, that they are being worked on probably says something about the ETA of a new release. Exactly what it says is pure speculation.

Many of the updates in the coming release can be assumed. An update to newer Linden code is always a part of any new Firestorm release. As are bug fixes and new improvements to existing features. It is also pretty predictable that some new features will be added. This release has some performance improvements. I’m not sure they will affect FPS, but other features are likely to be quicker and easier.



